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Hello Sirs.
We are so happy, because my friend has found a document very complete about Ford DCL Communication Protocol. We are now trying to understand that.
If anybody are interested, feel free to send me a message.
Best Regards.
Sergio. (The Gaucho of the Pampa 8-))

2 - I. The SBDS will specify this diagnostic mode by transmitting
the following DPS:
DPS Field Value
==========================
Module Select 001H
Module Offline FFFH
DIAGMODE Code 41H
Frame Length X
DIAGMODE Qualifier 000H
The EEC-IV will change to this mode at the start of the
next Block. All other link devices will go offline. Frame
length can vary from 2 to E slots.

How many bit are used for communication, 8 or 12 or both ??
Can anybody help as.
Thanks to all.
Best Regards.
Sergio

But I don&#180;t know what tension level have to use and if that interface will work.
ECU
Between DCL(+) and DCL(-) 4.53 volt DC
Between DCL(+) and Ground 4.77 volt DC
Between DCL(-) and Ground 0.24 volt DC

With this project (Just to Ford EECIV DCL ECU or PCM) any people could have a screen like above or similar, beside his instrument panel and may be thinking in most ambitious project, using a screen from a GPS too.

This is brilliant work! I am doing much the same thing but am far behind you.

At the moment I have a development board with RS485 interface, and have sent the echo command 00 00 00 00 00 01 82 00 00 00 83 successfully to an ecu, and CART mode command 00 00 00 00 00 01 04 00 00 00 05 and I'm now struggling to understand the DPS message structure before I can get any further.

You have obviously solved this. Are you going to post your finding on the web?

I have tried to send you a PM, but system say me that is not allowed.
We are working hard in this project around one and half year.
I have posted a lot of information about our project and was not thinking post any more by this moment.